Glass beveling machine



Jm 1940- A. MACELLARO El AL 2,187,748

GLASS BEVELING MACHINE Filed Oct. 1, 1938 4 Sheets-Sheet 2 1 N VE N TORSflzzllzozgy Maaellezra BY andflnlhany 7 01116788,

Jam 23, 1940. A. MACELLARO ET AL 2,187,148

GLASS BEVELING MACHINE Filed Oct. 1, 1938 4 Sheets-Sheet 3 Fig.5 5

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W y Q 9 AT OR Jan. 23, 1940.

A. MACE-LLARO ET AL 2,187,748

GLASS BEVELING MACHINE Filed Oct. 1, 1938 4 Sheets-Sheet 4 Patented Jan.23, 1940 V UNITED STATES GLASS BEVELING MACHINE Anthony Macellaro andAnthony Tornese, Brooklyn, N. Y.

Application October 1,

2 Claims.

The invention here disclosed relates to the beveling of glass and likematerials, such as used for mirrors and other purposes.

Objects of the invention are to provide a machine which will be capableof beveling practically any desired shapes, which will be capable ofperforming anyone or any number of the various operations usuallyrequired, such as the roughing, smoothing, polishing and rougingoperations, and which will be accurate and uniform in its action.

Additional objects and the novel features of construction, combinationsand relations of parts by which the objects of the invention areattained are hereinafter set forth or will appear in the course of thefollowing specification.

The drawings accompanying and forming part of the specificationillustrate a practical commercial embodiment of the invention. Theactual physical structure of the invention may be modified and changedin various respects all within the true intent and broad scope of theinvention as hereinafter defined and claimed.

Fig. 1 is a broken part sectional front view of the machine with theparts in position for the first or what is ordinarily termed theroughing operation.

Fig. 2 is a broken plan view of the same.

Fig. 3 is a broken side elevation of the machine as viewed from theright in Fig. 1.

Fig. 4 is a broken vertical sectional View of the adjustable baseconstruction as taken on substantially the plane of line 4-4 of Fig. 1.

Fig. 5 is a broken plan view showing the machine as set for thesmoothing operation.

Fig. 6 is a left hand side view of the machine as it appears in Fig. 5.

Fig. 7 is a broken sectional detail of the hollow shaft which carriesthe suction chuck at one end and the templet or pattern cam at theopposite end.

The machine shown comprises a substantial base Ill, carrying uprightsII, in which a shaft I2, is journalled in vertically adjustable bearingsat l3. This shaft is driven as by belt pulley l4, and has mounted on itin longitudinally adjustable relationship at IS, a glass working wheel16.

For the initial or roughing operation, a carborundum wheel may beemployed, for the intermediate, smoothing operation a wheel of aloxitemay be used and for the final polishing and rouging operations, a feltwheel may be used.

1938, Serial No. 232,752

The glass is handled in the form of blanks H, which have been cut to thedesired outlines and these blanks are held and presented to the wheel bymeans of a suction chuck l8, having the same shape as the blank. Thiscorrespondence of shape enables the blank to be quickly placed andimmediately accurately centered on the chuck.

The'chuck is shown as adjustably and remov m ably secured at IS, on oneend of a hollow shaft r 20, to the opposite end of which a suction pipe2|, is connected by a swivel coupling 22. By means of a hand valve 23,the suction can be turned on and oil to hold or to release the blank.The chuck may be faced with a layer of cork or other suitable cushioningmaterial 24, and one or more suction passages such as indicated at 25,may be provided in this facing, such passage or passages opening to theinterior of the hollow supporting shaft.

For the roughing and polishing operations, it is usually considered bestto present the glass fiatwise to the wheel and for the intermediatesmoothing operation, best results are usually obtained by presenting theglass edgewise to the wheel. To meet such requirements, the chuck shaftin the present machine is mounted so that it may be positioned eithervertically, with the chuck at the upper end of it in a horizontal planeas in Figs. 1, 2 and 3, or be positioned horizontally with the chuck ina vertical plane and inclined to the axis of the wheel, as in Figs. 5and 6.

The form of mounting for such purposes is shown as a bracket 26, havingside arms carrying bearings 21, at one end for the chuck shaft andcarrying bearings 28, at the opposite end engaged overa supportingspindle 29.

The spindle 29 is shown in Fig. 4 as having its lower end extendingthrough a transverse bore in a supporting hub 36, and aligning openingsin a surrounding sleeve 3|. An annular shoulder 32, enables the spindleto be stepped in this relation. The supporting hub 3|), is shown 5 ashaving a screw-threaded stud portion 33, extending through slot 34, inan upright supporting bracket 35. A nut 35, engaged on this stud servesto draw the hub toward the back of this bracket and in this action tocause the spindle 50 to force the sleeve 3|, against the face of thebracket, thus to clamp the spindle firmly against movement in anydirection.

A vertical screw 31, is indicated as rotatably mounted in the supportingbracket 35, and as 66 and sleeve 3|, may be turned to lower the" spindle29 into the-horizontal relation illustrated in Figs. 5 and 6. I I

Operation on the work is definitely and accurately controlled by meansof a templet, in the nature of a profile cam 39, adjustably andremovably secured at 40, on the hollow chuck shaft 20, in a position toengage aroll 4|, on the end of an arm 42, projecting from and fixedlysecured to the spindle supporting hub 30 at 43, Figs. 3 and 4.-. 1

By means of bearings 28, the bracketor frame.

26, which carries the combined chuck and cam 'shaft, is capable ofswinging movement about the axis of the supporting spindle 29, and isurged toward the wheel by a weight 44, on the end frame at 41.

of a flexible connection 45, extending up over a pulley 46, at the sideof the machine to a point of engagement with the free end of theRotation of the chuck shaft to cause the cam or pattern plate to rideover theposition determining roll M, is effected in the illustration bya chain 48, extending from sprocket gear 49, to a sprocket gear 50,removably and-adjustably secured on the chuck shaft at 5!. The sprocketgear 49, as shown more fully in Fig. 4, is keyed to and thus in effectforms part of a worm gear 52, rotatably mounted on'the' supportingspindle 29, and said worm gear is engaged by a worm 53, on a shaft 54',driven fromthe main shaft 12.

In the machine as set upfor 'th'e "rou hing and polishing operations, asshown in Figs. 1 to 4, the worm shaft 54,may"be substantially parallelwith shaft l2, and hence'b'e driven' di-'- rect by a belt 55, frompulley 56, on shaft 12; to pulley 51, on shaft 54.

When the machine is set, for the smoothing operations, Figs. 5 and 6,with the shaft 54, out of parallel with shaft I2, the driv'e'maybeeffected by providing shaft 54, witha'n extension 54a, carrying thepulley 51, coupled by a universal joint 58, and supported in a journalbearing 59, bolted down on the base It).

In shifting from the horizontal position of the chuck supportingbracket, Fig. 1, to the vertical position shown in Fig. 6, it isnecessary to shift the worm shaft 54, in the bracket, so that in the newrelation, it will occupy a horizontal or nearly horizontal position.This is provided for in the illustration by journalling the worm shaftin the spaced arms 66, of a bracket 6|, having a hub portion engaged onthe supporting spindle and adjustably secured in desired angularrelation thereon by a set screw 62.

The spindle supporting bracket 35 is shown in Fig. 4 as secured by bolt63, in position rotatably adjustable about a vertical axis. This bolt isset in a slide 64, which can be advanced or retracted byfeed screw 65,on a head 66, retatably held at 61, on a sub-base 68. The latter isindicated as adjustably secured by clamps 69, in a slotted way 76, inthe main base plate H]. The several adjustments thus provided enable theentire chuck and pattern follower assembly being bodily adjusted towardand away from the wheel shaft and any desired angular adjustments to bemade about a vertical axis. Thus any required take-up for wear of thewheel or other parts, or to suit different angles of bevel can bereadily effected.

The machine can be easily changed from the position first shown forroughing and polishing operations, to the second position shown in Figs.5 and 6 for smoothing operations or vice versa. In commercial. largescale .productiona number of themachines may be employed, with some ofthem' set for certain operations and others set v.for the othernecessary operations, the chucks "and the cams of the different machinesbeing counter-parts or alike to the extent of effecting successive.operations on the same shape blanks. F1"Ihe"swinging"frame which carriesthe chuck and pattern cam is shown provided with a pro- ,jecting handleH, by. which the frame may be drawn back from the wheel at any time andif desired, means may be provided for holding the frame inretractedposition, such as a properly located hook or 'the like.

By using appropriately shaped chucks and templets, the glass for 1mirrors or other purposes may beground, smoothed, polished and rouged inpractically any desired shapes and in only three steps or stages, asdisclosed. By feeding the work smoothly and evenly to the wheel, thebevel produced is accurate and uniform, following as exactly as may bedesired the contour of the piece.

To facilitate accurate placing of the workuon the chuck, some means maybe provided for stopping the rotative movement of the chuck when theframe is swung back from the wheel. In the present illustration,.a beltshifter is shown at 12, Figs. 1, 2 and 3, projecting from the upper hub28, of the swinging. frame and adapted to throw the belt 55', from thefast pulley 51, over onto the-loose pulley 13, as the frame is-swung 1outward, away from the wheel. This belt shifter is indicated asremovablyattached to the swinging frame at 14, so that it may be taken off whenthe frame is turned around into the vertical position, Figs. 5 and 6,and in'thelatter position also, if desired, an automatic belt; shifteror other means may be employed for throwing the chuck rotating means outof operation when the frame is shifted to the non-working position.

What is claimed is: I

1. A glass beveling machine, comprising a substantially horizontallyjournalled shaft, -a glass working wheel on said shaft,-a supportmounted for angular adjustment about a substantially horizontal axis andmeans for securing saidsupport in different positions of angularadjustment, a spindle carried by said support and adapted to be rigidlyheld thereby in substantially horizontal or in substantially verticalposition, a bracket mounted on said spindle, means for securing saidbracket in different angular relations about said spindle, a shaftjournalled in said angularly adjustable bracket spaced from andsubstantially at right angles to theaxis .of said spindle, a worm onsaid shaft, a worm gear journalled on the spindle in opposition to saidworm and engaged thereby, drive connections from the substantiallyhorizontal glass working wheel shaft to said worm shaft, a framejournalled to swing on said spindle, a tubular shaft journalled torotate in the free swinging end of said frame, in substantialparallelism with said rigid supporting spindle, a glass blank holdingsuction chuck removably mounted on one end of said hollow shaft,swivelledsuction connections on the opposite end of said hollow shaft, apattern cam removably mounted on said latter end of said hollow shaft anabutment for said cam carried by said angularly adjustable support anddrive gearing from said worm gear journalled on the spindle to saidhollow chuck shaft journalled in the swinging frame.

2. A glass beveling machine, comprising a sub:- stantially horizontallyjournalled shaft, a glass working Wheel on said shaft, 2. supportmounted for angular adjustment about a substantially horizontal axis andmeans for securing said support in different positions of angularadjustment, a spindle carried by said support and adapted to be rigidlyheld thereby in substantially horizontal or in substantially verticalposition, a bracket mounted on said spindle, means for securing saidbracket in different angular relations about said spindle, a shaftjournalled in said angularly adjustable bracket spaced from andsubstantially at right angles to the axis of said spindle, a Worm onsaid shaft, a worm gear journalled on the spindle in opposition to saidworm and engaged thereby, drive connections from the a substantiallyhorizontal glass working wheel shaft to said worm shaft, a framejournalled to swing on said spindle, a tubular shaft journalled torotate in the free swinging end of said frame, in substantialparallelism with said rigid supporting spindle, a glass blank holdingsuction chuck removably mounted on one end of said hollow shaft,swivelled suction connections on the opposite end of said hollow shaft,a pattern cam removably mounted on said latter end of said hollow shaftan abutment for said cam carried by said angularly adjustable supportand drive gearing from said worm gear journalled on the spindle to saidhollow chuck shaft journalled in the swinging frame, said drive gearingincluding a sprocket gear connected with said worm gear, a sprocket gearremovably secured on the hollow chuck carrying shaft and a chainconnecting said sprocket gears.

ANTHONY MACEILARO. ANTHONY TORNESE.

